Middle Cerebral ArteryInfarction, Middle Cerebral ArteryCerebral ArteriesCerebrovascular CirculationBrain IschemiaCerebral InfarctionCerebral Arterial DiseasesUltrasonography, Doppler, TranscranialCerebral AngiographyIschemic Attack, TransientArterial Occlusive DiseasesAnterior Cerebral ArteryArteriesBrainBlood Flow VelocityPosterior Cerebral ArteryBrain EdemaReperfusionIntracranial Embolism and ThrombosisStrokeNeuroprotective AgentsBasilar ArteryCarotid Artery, InternalIntracranial AneurysmDisease Models, AnimalBrain InfarctionCerebrovascular DisordersTomography, X-Ray ComputedCarotid ArteriesCerebral RevascularizationRats, Sprague-DawleyTemporal ArteriesMagnetic Resonance AngiographyTime FactorsCerebral HemorrhageSubarachnoid HemorrhageInfarction, Anterior Cerebral ArteryMagnetic Resonance ImagingUmbilical ArteriesConstrictionReperfusion InjuryRats, WistarIntracranial EmbolismAneurysm, RupturedPulmonary ArteryCerebral CortexCircle of WillisBlood PressureUltrasonography, DopplerVertebral ArteryCerebral VeinsCarotid Artery DiseasesRegional Blood FlowNeurologic ExaminationTissue Plasminogen ActivatorPia MaterVasoconstrictionLaser-Doppler FlowmetryIntracranial ThrombosisCarotid Artery ThrombosisCerebral PalsyTreatment OutcomeVasodilationCatsEchoencephalographyIntracranial ArteriosclerosisBlood-Brain BarrierMesenteric ArteriesCarotid StenosisRenal ArteryCarotid Artery, ExternalFemoral ArteryFibrinolytic AgentsPulsatile FlowAngiography, Digital SubtractionCraniotomyEar, MiddleCollateral CirculationCarbon DioxideAcute DiseaseRats, Inbred SHRMoyamoya DiseaseHypocapniaUltrasonography, PrenatalVasospasm, IntracranialIntracranial PressureThrombolytic TherapyRecovery of FunctionInjections, Intra-ArterialMuscle, Smooth, VascularInfarction, Posterior Cerebral ArteryPapioAcetazolamideRadial ArterySurgical InstrumentsHemodynamicsConstriction, PathologicNeuronsCarotid Artery, CommonTetrazolium Salts